31431431 is an odd 8-digits composite number following 31431430
and preceding 31431432 . In scientific notation, it is written as 3.1431431 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 31407072 positive integers (up to 31431431) that are relatively prime to 31431431.
31431431 has 4 divisors, whose sum is 31455792
The reverse of 31431431 is 13413413
Previous prime number is 1367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
thirty-one million four hundred thirty-one thousand four hundred thirty-one
Scientific notation
3.1431431 × 10^7
Engineering notation
3.1431431 × 10^6
Prime Factorization
1367 × 22993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31431431
Product of the distinct prime numbers
The prime factorization of 31431431 is 1367 × 22993.
Since it has a total of 2 prime factors.
6 , 8 , 11 , 76 , 721 , 426 , 184 , 3364 , 73805 , 76482 , 521227 , 610486 , 4271930 , 5497619 , 49765702 , 56898335 , 954632023 , 379553648 , 9306590821 , 1978030286
n×2
62862862
n×3
94294293
n×4
125725724
n×5
157157155
n÷2
15715715.5
n÷3
10477143.666667
n÷3
7857857.75
n÷5
6286286.2
n2
987934854707761
n3
3.1052206218242E+22
n4
9.7601527714644E+29
n5
3.0677556838574E+37
2 √n
5606.3741402086
3 √n
315.58865654791
4 √n
74.875724638955
5 √n
31.58441451891
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31431430
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31431431 can be divided by 4 positive divisors.
The sum of these divisors (counting 31431431) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111111001101100000111
3
Ternary
2012010212211002
4
Quaternary
1313321230013
5
Quinary
31021301211
6
Senary
3041403515
8
Octal
167715407
10
Decimal
31431431
12
Duodecimal
a63959b
16
Hexadecimal
1df9b07
20
Vigesimal
9g8ibb
36
Base36
iponb
md5
eda1908ffaac02c46834c189c33f59b2
sha1
13066d72cfba56bb094da1fe26178606e29e85b4
sha256
913cb2e2d69f042b357cad41bffc36c9230aa982f3d6056a50e8ceb98e08be89
sha512
e20c3aa6ed4220a5d9b6bca2af6e26690485a17cb8f8694be04f85bcd579e7cd376487db1b2707a357cf5c5ae6433926b0af6ff5a78359b12816c132619f5987
ripemd-160
1d3692d77e59477dc8d54b21043bd33a408dc274
Diameter
62862862
Circumference
197489505.44283
Area
3.1036888817752E+15
Volume
1.3007117724398E+23
Surface area
1.2414755527101E+16
Circumference
197489505.44283
Perimeter
125725724
Area
987934854707761
Diagonal
44450756.004994
Surface area
5927609128246566
Volume
3.1052206218242E+22
Space diagonal
54440835.446595
Perimeter
94294293
Area
4.277883407305E+14
Altitude
27220417.723298
Surface area
4.277883407305E+14
Volume
3.6595375979537E+21
Height
14816918.668331